/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.explorer.ui.task;

import com.vaadin.ui.Label;
import org.activiti.engine.task.Task;
import org.activiti.explorer.Constants;
import org.activiti.explorer.I18nManager;
import org.activiti.explorer.Messages;
import org.activiti.explorer.ui.mainlayout.ExplorerLayout;


/**
 * @author Joram Barrez
 */
public class PriorityLabel extends Label {

    private static final long serialVersionUID = 1L;

    protected int priority;
    protected I18nManager i18nManager;

    public PriorityLabel(Task task, I18nManager i18nManager) {
        this.i18nManager = i18nManager;
        this.priority = task.getPriority();

        addStyleName(ExplorerLayout.STYLE_CLICKABLE);
        setSizeUndefined();
        setValue(priority);
    }

    public int getPriority() {
        return priority;
    }

    @Override
    public void setValue(Object newValue) {
        if (newValue instanceof Integer) {
            priority = (Integer) newValue;
            if (priority < Constants.TASK_PRIORITY_MEDIUM) {
                super.setValue(i18nManager.getMessage(Messages.TASK_PRIORITY_LOW));
                addStyleName(ExplorerLayout.STYLE_TASK_HEADER_PRIORITY_LOW);
            } else if (priority == Constants.TASK_PRIORITY_MEDIUM) {
                super.setValue(i18nManager.getMessage(Messages.TASK_PRIORITY_MEDIUM));
                addStyleName(ExplorerLayout.STYLE_TASK_HEADER_PRIORITY_MEDIUM);
            } else if (priority > Constants.TASK_PRIORITY_MEDIUM) {
                super.setValue(i18nManager.getMessage(Messages.TASK_PRIORITY_HIGH));
                addStyleName(ExplorerLayout.STYLE_TASK_HEADER_PRIORITY_HIGH);
            }
        } else {
            throw new IllegalArgumentException("Can only set integer as new value for PriorityLabel");
        }
    }

}
